Cooler



FIG. 1 is a top perspective view of a cooler of our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

Broken lines are used to illustrate border lines of the cooler that formno part of the claimed design.

CLAIM The ornamental design for a cooler, as shown and described.